Quantum, Relativity & Forces Explained | Pixelated Physics

3 articles

Pixel-art perfect-fluid streamlines flowing symmetrically around a violet cylinder, captioned drag equals zero

D'Alembert's Paradox: Why a Perfect Fluid Has Z...

In 1752 d’Alembert proved that a body moving steadily through a perfect fluid feels no drag at all. Every boat and bicycle says otherwise. Here is the calculation, why it...

D'Alembert's Paradox: Why a Perfect Fluid Has Z...

In 1752 d’Alembert proved that a body moving steadily through a perfect fluid feels no drag at all. Every boat and bicycle says otherwise. Here is the calculation, why it...

A single smooth hump of water travelling along a canal at dusk, followed by a rider on the towpath

What Is a Soliton? The Wave That Refuses to Spr...

Most waves spread out and fade. A soliton does not: it rolls on with the same shape and speed, and two of them can pass straight through each other. Here...

What Is a Soliton? The Wave That Refuses to Spr...

Most waves spread out and fade. A soliton does not: it rolls on with the same shape and speed, and two of them can pass straight through each other. Here...

Fast shallow water in a channel rising into a deep, slow, foaming hydraulic jump

Kármán Vortex Streets and Hydraulic Jumps: Why ...

Put a cylinder in a steady flow and it sheds a staggered trail of whirlpools called a Kármán vortex street. Let a fast, shallow stream slow down and it leaps...

Kármán Vortex Streets and Hydraulic Jumps: Why ...

Put a cylinder in a steady flow and it sheds a staggered trail of whirlpools called a Kármán vortex street. Let a fast, shallow stream slow down and it leaps...